Belt-guide.



Na. s5,447.* PATENTED AUG.11,19 08;

' B. W. ems & J. c. ACKERMAN.

BELT GUIDE. APPLICATION I:ILED AUG. 15, 1906 I Y El annually,

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STATES PATEN T OFFICE.

TEMMET W. GAXS ANDQIIOHX CHRISTIAN ACKERMAN, OF MAXSFIELD, OHIO,ASSIGNORS TO OF OHIO.

THE AULTMAN & TAYLOR MACHINERY COMPANY, OF/MAXSFIELD, OHIO, ACORPORATION v Specification of Letters Patent.

BELT-GUIDE.

Patented Aug. 11, 1908.

Application filed August 15,1906. SerielNfi 330,650.

To all whom itmay concern:

Be it known that we, Earner IV. GANS and Jon): Onmsrnx ACKERMAS,citizens of the United States. residing at Mansfield, in the county ofRichland and State of Ohio, have invented certain new and usefulImprovements in Belt-Guides, of which the following is a specification.

. Our invention relates to belt guides and is especially adapted to beused on threshing machines in the field.

Our invention consists in suitable mechanism that has for its objectsthe construction of a belt 'uide that will counteract the tend cncy ofthe belt from running to either side of the driving or driven pulley.

It is well known that the tendency of the belt is to run to the highside of the pulley under ordinary circumstances. In practice, therefore,it is necessary to have the shafts,

upon which the driving or driven pulleys are mounted in true parallelismand on a lane with each other, in order to secure ful beltcontact. Inthe operation, however, of threshing machines and other machines of thesame character where it is not possible to place the driving pulley anddriven pulley exactly parallel, or on a plane with each other or fromsome other cause such as high winds, the tendencv of the belt is to runoil or to one side of the driv'cn pulley or driving pulley.

A further object is to construct the belt guide by means of which eitherside of the guide pulley can be raised, lowered, swung closer, orfarther away from the driving or driven pulley, and means to securelyretain the belt guide pulley at any such relative position withreference to either the driven or driving pulley. Other objects andadvantages wi 1 appear in the description and will be specificallypointed out in the claims:

In the accompanying drawing, Figure 1 is a top plan view of ourinvention. Fig. 2 is a cross-sectional side elevation showim the detailed mechanism of our belt guide and means employed to adjust it tocounteract the tendency of the belt to move to either side. Fig. 3 is anend plan view of our inventron. Fig. 4 is a cross-sectional end eleva-'provide a plate (1) having slots (2 & 3)

through which bolts or other fastening means are inserted to secure theplate in its proper relative position with reference to the belt it isdesired to guide. An annular upwardly extending boss is provided with anannular concave portion (5) which surrounds the washer (6). A swingingframe (7) with upwardly extending members (8 8: 9) is provided andadapted to oscillate and swing upon the plate (1) as will be hereinafterdescribed. An annular eonvexed portion (10) is secured to or made interal with the frame (7) and is adapted to fit the concave portion of theplate (1). It is also provided with an elongated slot (11) to permit theoscillation of the guide pu ley.

Suitable aper ures are provided in the center of the conca'e portions ofthe plate ..(I) and'the convexe d, portion of the frame (7) into which acollared bolt (12) is inserted. A convexed washer (13) adapted to fitthe concave portion (14) of the frame is interposed between saidconvexed portion and the nut (15) of the bolt for the purpose of rigidlysecuring the plate and frame. This construction, it will be observed,forms a modified ball and socket joint. The bolt (12) movably securesthe plate (1) and the frame together in any relative position desired ornecessary to guide the belt. Longitudinal bearings (16 & 17) areprovided in the upwardly extending members (8 & 9), forming bearings forthe shaft or journal (18) of the guide pulle (19). Bearing caps ('20 &21) arer0- videt and secured to the upwardly exten in members (8 '& 9)by the bolts (22). Vertica shafts or journals (23 & 2-1) are madeintegral or secured to the. caps forming bearings for the idler rollers(25 & 26). The shafts (23 & 24) project above the top of the idlerrollers (25 A: 26). A brace (27) having suitable apertures in each end,is fitted to the projecting portions of the shafts (23 & 24) whichbraces the caps and prevents any tendency of the caps or vertical shaftsto vibrate or move out of true alinement. The brace is held in place bythe cotter pins (28).

An operating handle (29) is secured to the frame (7 by any ordinaryfastening means, and is used to adjust the guide pulley (19) which isjournaled in the swinging frame (7) to counteract the tendency of thebelt to run oil or to either side of the periphery of the driven ordriving pulley. hen the nut (15) of the bolt (12) is loosened the frame(7) can side or the other ofthe guide'pulley (19) hi her or lower at thewill of the operator.

it; is desired to oring either end of the guide pulley (19 closer or farther away from the (ll'lVE'll or driving pulley, the frame (7) is swungin the ball and socket hearing or joint bringing either end closer orfarther away from the pulleys at'the will of the operator. In swingingthe frame (7) through the medium of the operating handle (29) a compoundmovement of the axis of rotation of the guide pulley is obtained- Theframe (7) can be svung so that either end of the guide pulley is broughtcloser to or farther away from the driven or driving pulley taking upthe slack on either side of the belt. If, however, it is desired, eitherend of the guid pulley (19) can be miscdorlowered throwing the axis ofthe guide pulley out of parallelism with either the driven or drivingpulley and controlling and guiding the belt in such a manner as tocounteract the tendency of the belt to run to either side of the drivenor driving pulley on account of being out of parallelism with thepulleys or on a different plane or other causes. The idler rollers (Z38: 24) contact with the edges of the belt and assist the guide pulley inkeeping the belt in the center of the driving and driven pulleys.

Reference figures and numerals 129 and 30 designate supports formed onthe lower plate 1 to piy'otally support the central portion of the frame7 to prevent the f can e from tiltin In the operation of the bel' guideas described above when it is desired to adjust the guide pulley to itsproper relative position to control and guide the belt so that it willrun true on the periphery of the driving or driven pulley, the nut ofthe bolt which secures the frame and plate in any adjusted position isloosened and the operator grasps the handle 29 which imparts movement tothe belt guide frame forcing the guide pulls-y in contact with the beltand in the direction necessary to make it run true on the driven ordriving pulley. The nut is then tightened and the rame is held in itsadjusted position.

Havhng fully described our invention, what we claim and desire to secureby Letters Patent is:

1. A belt guide for threshing machines or the like comprising a platehaving a concave up-stand' 3 central portion. a frame having parallelartns extending therefrom with horizontal bearings formed therein. saidframe having verti -sl journals formed on the upper extremities, a guide)uiley journaled 1n the horizontal bearings bed-3w the verticaljournals, gr' d pulleys mounted on said vertical journals, said framehaving a convex central portion adapted to fit the concave portion ofthe plate, and means to adwhereby said frame can be retained m or out ofahnemcnt with the driving or driven pulley.

2. In a belt guide for threshing machines or the like, the combinationof a stationary plate having. a concave central portion extending abovethe upper surface with an aperture provided therein, a bolt fitted tosaid aperture, a bifurcated frame having a. convex central portionadapted to it the concave central portion of the stationary plateforming a bearing to provide for angular adjustment. of said frame, anda guide pulley journalcd in said frame substantially as and for thepurpose described.

In a belt guide for threshing machines or the like, the combination of astationary plate having a concave central port-ion extending above theupper surface with an aperture provided therein, a bifurcated framehaving a convex central portion ada )tcd to fit the concave centralportion of the stationary plate forming a. bearing to provide angularmovement for said frame, a bolt to movably secure said frame and platetogether, a guide pulley journaled in said frame, said frame havingvertical journals formed thereon, and guard pulleys mounted on saidvertical journals and adapted to ro tale thereon as and for the purposede scribed.

4. In a belt guide, the combination of a stationary plate having acentral portion formed concave and an aperture provided in the centerthereof, a frame provided with two tip-standing arms with the upper orfree ends thereof provided with vertical journals, a convex projectingportion being formed on the bottom of said frame and adapted to engage.with the concave portion of said plate, means to movably secure said)late and frame together, a guide pulley ournalcd in said frame, guardpulleys journaled on the upper ends of said frame, a brace secured tothe upper ends of the arms of the frame, and means provided on the frameto force the guide pulley incontact with the belt it is desired to guideand counteract the tendency of the belt to run out of true alineinentwith a driven or driving pulley, as and for the purpose described.

In testimony whereof we, allix our signatures in presence of twowitnesses.

Ellllli'l W. G.\.\'S. .lOllX ClllllSTlAX ACKERMAN Vt'itnesses:

CLAUDE H. LACEY, MAY THOMAS.

ustably secure said 'rra'me to the plate

